Adaptec USB2Xchange User Guide - Page 38

Troubleshooting Troubleshooting If you have problems with the USB2Xchange, work through these troubleshooting tips. My device is not recognized. How can I get the system to recognize my device? I All SCSI devices must be powered on before the system acknowledges the USB2Xchange. Power on all SCSI devices and then reconnect your USB2Xchange to your computer. I Verify that the drivers are installed on your computer. I The USB2Xchange adapter receives its electrical power from the termination power line of attached SCSI devices. If this power supply is not available, the adapter switches automatically to receive power from the USB bus. There are cases when the USB bus cannot supply the needed power for the USB2Xchange to operate-if, for example, you're using an unpowered USB hub and the attached SCSI devices don't supply SCSI termination power. In these cases, you may need to use an optional DC power supply. See Understanding the USB2Xchange Power Supply on page 21 for more information. My SCSI device has a different connector than the one provided on the USB2Xchange. How can I correct this problem? A 50-pin High-Density to 25-pin SCSI converter is available for purchase on the Adaptec Web site. Additionally, Adaptec provides a wide range of SCSI cable solutions. Go to www.adaptec.com for more information. When I change CDs using Windows, I don't see the new one in the drive. Use the View Menu/Refresh option to refresh your screen. 28